语法填空
阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或者使用括号中词语的正确形式填空。
Mr Jones had a
few days’ holiday, so he decided to go on a trip. He put ____ his best clothes, took a small bag,
____(go) to the train station and got on the train. He had a 18.
____(beauty) hat, and he often put his head out of the window ____(see)
the mountains during the trip. Suddenly, the wind ____(blow) away his hat.
Mr Jones ____(quick) took his bag and threw it out
of the window.. ____(other) on the train laughed and said, “Is your bag
going to bring your hat ____?”
“No,” Mr Jones answered,
“but there is no name or address on my hat, and there ____(be) a name and
____ address on the bag. Someone will find both of them, and he will send
the bag and the hat back to me.”
与
不共线，
，且
，则向量
的夹角为（ ）
